county



UN ITED brains Parana Charon,

EDMUND K. lllUSPRATT, OF SEAFORTH HALL, NEAR LIVERPOOL, COUNTY OF LANCASTER, AND GEORG ESCHELLMANN, OF NORTHNICH, COUNTY OF CHESTER, ENGLAND.

MANUFACTURE OF POTASSIUM CHLORAT'E.

SPECIFICATION forming part of Letters Patent No. 388,997, dated September 4, 1888.

Application filed April 17, 1888. Serial No. 270,032. (No specimens.) Patented in England October 31, 1883. No. 5,168; in Germany November 6, 1883, No. 27,730; in Belgium November 12, 1883, No. GBJBI; in France November 12, BS3, No, 157,420, and in Austria-ll'ungary January 7, 1884, No. 43,021 and No. 57,674.

To aZZ whom it may concern: then heated with potassium chloride and de- Be it known that we, EDMUND KNOWLES composed into potassium chlorate and mag- MUsPRA'r'r, a subject of the Queen of Great nesium chloride, after which potassium chlo- Britain and Ireland, and GEORG EsoHELL- rate is separated from the magnesium chlo- MANN, Ph. D., a subject of the Emperor of ride by crystallization, leaving behind a Germany, and residing, respectively, at Seamother-liquor still containing potassium chloforth l:Iall,ncar Liverpoohin the county of Lanrate, but in such small proportions (about five caster,aud Northwich,in the county of Chester, per cent. to ten per cent. of the total chlorate) bothin the Kingdom ofEngland,havcinvented as to render its recovery as chlorate unprofita to certain Improvements in the lilanufacture of ble. This mother-liquor is now treated with Chlorate of Potash and in the Treatment of hydrochloric acid and steam, by which the the Mother-Liquor Resulting Therefrom, (for potassium chlorate is decomposed into chlowhich we have obtained patents in Great Britrine and potassium chloride. The chlorine ain, No. 5,168, dated October 31, 1883; in Germay be utilized by absorption by magnesia or many, No. 27,730, dated November 6, 1883,- in lime, as may be found convenient. The re- 63 Belgium, No. 63,187, dated November 12, maining liquor, containing an excess of by- 1883, addition; in France, N 0. 157,420, dated drochloric acid, is then neutralized with mag- November 12, 1883, addition, and in Austrianesium carbonate, and then consists (with the Hungary, No. 57,674, Hungary dated January exception of a very small quantity of potas 2o 7, 188st, No. 43,021; Austria, dated January sium chloride) of magnesium chloride, which 65 7, 1884,) of which the following is a specificais boiled down to from about 85 to about 90 tion. Twaddle and allowed to cool and solidify, and Our present invention has reference to our thus is made available for sale or for further prior invention for which we obtained British use (as magnesia) by reheating it in any 25 Letters Patent No. 3,960, dated the 15th day known way, so as to convert it into magnesia of August, 1883; and our said present invencontaminated with a small quantity of magtion has for its object to effect improvements nesium chloride, which contamination will not in the process constituting our said prior inprevent our using the magnesia over again in vention,wherein magnesia is substituted for our process. 30 lime for the absorption of chlorine gas. Having now described and particularly as- The magnesia is mixed with water and kept certained the nature of our said invention'and in suspension therein by agitation and treated the manner in which the same is or may be with chlorine. gas, as is the case with the proused or carried into effect, we would observe, cess constituting our aforesaid invention. in conclusion, that we do not confine ourselves -5 The produce is liquor containing magnesium to the exact proportions and densities above So chlorate and magnesium chloride in the proset fortlnas they may be varied according to cirportion of from about five tofive and onehalf cumstances and conditions. equivalents of the latter to one of the former. \Vhat we consider to be novel and original, According to the present invention this liquor and therefore claim as the invention scoured 40 is boiled down to about from 75 to Twadto us by the hereinbefore in part recited Letdie, and magnesium chloride is crystallized ters Patent, is out by cooling, leaving behind a liquor con- 1. In the manufacture of chlorate of potash taining one equivalent of magnesium chlorate by means of magnesia and chlorine, the imto about four equivalents of magnesium chloprovement consisting in boiling down the mag ride. This improved magnesium liquor is nesia liquor to crystallize out magnesium chloride and subsequently heating the said In testimony whereof we have signed our liquor thus improved with potassium chlonames to this specification in the presence of ride, substantially as described. two subscribing witnesses.

2. The treatment of the mother-liquor re- E. K. MUSPRATT. 5 sulting from the manufacture of chlorate of GEORG ESCHELLMANN.

potash, in the manner hereinbefore described, \Vitnesses: with hydrochloric acid and with steam, so as \V, J. SULIs, to obtain chlorine and chloride of magne- US. ViceOonsuZ, Liveapool. sium therefrom, substantially as hereinbefore J. B. EMMONS,

IO described. U. S. Consulate, Dioemmol. 

